Question

The gas obtained by roasting of sulphide ore is reacted with acidified potassium dichromate. A green coloured compound ' $X$ ' is formed. The compound $X$ can be:

• A. $SO_{2}$
• B. $Cr_{2}\left(S O_{4}\right)_{3}$
• C. $Cl_{2}$
• D. $CrO_{2}Cl_{2}$

Answer 1

Answer: (B)